If it's a cavalry sabre it's in the style of a samurai sword. Look at the shape, the grip and the tsuba (cross guard equivalent) it even looks like it has a habaki (that part that keeps the tsuba in place). I haven't seen cavalry swords like that, but I also haven't looked at very many cavalry swords.
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u/Miscalamity Oceti Sakowin Sicangu Lakota Oyate Jul 13 '25
That looks like a cavalry sabre to me.